Cardiovascular physiology is a broad topic. Let me first check what books are available and then gather content from both Guyton & Hall and GK Pal simultaneously.

GK Pal is not separately listed - "Medical Physiology" (9780323319737) is likely GK Pal. Let me check the TOC of both Guyton and Medical Physiology for cardiovascular sections, and also search for key CV topics.

The "Medical Physiology" (9780323319737) is the Boron & Boulpaep textbook, not GK Pal. Let me check what that book is and also get key CV content from Guyton simultaneously.

GK Pal is not in the library. Medical Physiology (9780323319737) is Boron & Boulpaep. Let me now read major CV sections from Guyton comprehensively - cardiac cycle, action potentials, cardiac output, Frank-Starling, conduction, and vascular physiology - all in parallel.

Excellent content coming in. Let me now read the Frank-Starling mechanism, autonomic control, cardiac output, conduction system, and vascular physiology sections in parallel.

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